Classification
000 - Computer science, information & general works
2
363 - Other social problems & services
2
414 - Phonology & phonetics
600 - Technology
612 - Human physiology
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
333 - Economics of land & energy
1
380 - Commerce, communications & transportation
1
540 - Chemistry & allied sciences
1
580 - Plants (Botany)
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1